Improvement in adjustable partitions for book-cases



UNITED S ATES PATENT OEEIoE.

JOHN P. ADAMS, or CAMBRIDGE, MASSACHUSETTS.

IMPRO VEMENT IN ADJUSTABLE PAR TITIONS FOR BOOK-CASES.

Specification forming part of Letters Patent N 0. 154,940, dated September.15, 1874; application filed February 18, 1874.

' tion for book-cases, &c. Figs. 2 and 3 are horizontal sections of the same, taken respectively through the lines U V and X Y.

'The object of the present invention is to provide a simple, economical, and convenient,

device for sustaining books in an upright position on an unfilled shelf; and to this end my invention consists in an adjustable partition having an extension-top arranged to allow the ready insertion of the partition between the shelves of a book-case, &c., to accommodate itself to varying heights, and to bear firmly against the bottom of an upper shelf, so as to securely hold the partition, and prevent the lateral inclination'or fall of the books, all of which I will now proceed to describe.

In the drawings, A represents a block or frame of wood, or other suitable material, cut out in its upper portion to receive and allow the up and down movement of an extension top piece, B, having tongues a formed on either. side, and depending from its bottom, to travel in grooves and slots 1) formed in the block or v frame A, as shown; or the frame A and top B may be otherwise arranged, as preferred, to allow the up-and-down movement of the top B, which is raised and held firmly against an upper Shelf by spiral or other springs G, that have a seat in the top of the block A on either side, and bear in the bottom of the top B. The partition may be shaped, covered, and finished to represent a book, or otherwise formed and finished, as desired, and is inserted between the shelves of a book case or rack, &c., against the side of a book. The springs G (or other method used for extending the top B) cause it (the top B) to bearfirmly against the bottom of the upper shelf, so as to securely hold the partition in place, and prevent the inclination or fall of the book, as will'readily be seen without further explanation.

Having thus described my improvements, what I claim as my invention, and desire to have secured to me by Letters Patent, is-

An adjustable partition for a book-case, 850., consisting of a block or frame, A, having an extension-top, B, and sprin gs 0, arranged and operating substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN P. ADAMS.

Witnesses:

CARROLL D. WRIGHT, SAML. M. BARTON. 

